See also:

AUTO (Automatic Mode)
1. Turn the fan control to AUTO. 2. Turn the mode control to AUTO. 3. Adjust the temperature to a comfortable setting between 68°F (21°C) and 78°F (26°C). Choosing the coldest or warmest temp ...

Automatic Door Unlock
The doors will automatically unlock when the shift lever is moved into P (Park). See Vehicle Personalization . ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...